15 Questions
Which physical principle is ultrasound imaging based on?
Ultrasound radiations (acoustic waves)
Ultrasound radiations are safe because they are
non-traumatic
What are the interaction phenomena of ultrasound imaging with tissues?
Radiations penetrating into the human body
What are some imaging diagnostics based on physical principles?
X and γ rays
What are transducers and probes used for in ultrasound imaging?
Converting ultrasound waves into electrical signals
What are some common imaging techniques used in ultrasound imaging?
Doppler ultrasound imaging, Harmonic imaging
What are some image artifacts that can occur in ultrasound imaging?
Image artifacts
What are the frequency range of radiofrequencies?
kHz to 300 GHz
What are the advantages of ultrasound radiations in imaging diagnostics?
They are safe, externally applied, and non-traumatic
What are some other physical principles on which imaging diagnostics can be based?
Radiations penetrating into the human body (e.g. x-rays - ionizing radiation), γ-rays (ionizing radiation) emitted from the body by radio-tracers, Electromagnetics waves at radiofrequencies
What are the basic physics of ultrasound imaging?
Ultrasound imaging is based on the principle of acoustic waves, which are safe and non-traumatic. It uses electromagnetics waves at radiofrequencies in the range from kHz to 300 GHz.
What are the imaging techniques used in ultrasound imaging?
Ultrasound imaging techniques include Doppler ultrasound imaging and harmonic imaging.
What are some common image artifacts in ultrasound imaging?
Some common image artifacts in ultrasound imaging include speckle noise, reverberation artifacts, and shadowing artifacts.
What are some advantages of ultrasound radiations in imaging diagnostics?
Ultrasound radiations are safe, non-invasive, and externally applied. They do not involve ionizing radiation and are considered non-traumatic.
What are transducers and probes used for in ultrasound imaging?
Transducers and probes are used to generate and receive ultrasound waves. They convert electrical energy into acoustic waves and vice versa.
Study Notes
Ultrasound Imaging Fundamentals
- Ultrasound imaging is based on the physical principle of reflection and scattering of sound waves by tissues.
- Ultrasound radiations are safe because they are non-ionizing and non-invasive.
Interaction Phenomena
- Ultrasound waves interact with tissues through reflection, refraction, scattering, and absorption.
Imaging Diagnostics
- Imaging diagnostics based on physical principles include ultrasound, X-ray, MRI, PET, and CT scan.
Transducers and Probes
- Transducers convert electrical energy into ultrasound waves and probes convert ultrasound waves into electrical signals.
- They are used to generate and detect ultrasound waves in ultrasound imaging.
Imaging Techniques
- Common imaging techniques used in ultrasound imaging include A-mode, B-mode, M-mode, and Doppler.
Image Artifacts
- Common image artifacts in ultrasound imaging include shadowing, enhancement, reverberation, and artifact echoes.
Radiofrequencies
- The frequency range of radiofrequencies is 3 kHz to 300 GHz.
Advantages of Ultrasound Radiations
- Ultrasound radiations have no radiation risk, low cost, portability, and real-time imaging capabilities.
Other Physical Principles
- Other physical principles on which imaging diagnostics can be based include electromagnetic radiation, magnetic fields, and nuclear radiation.
Basic Physics of Ultrasound Imaging
- The basic physics of ultrasound imaging involves the production, propagation, and detection of ultrasound waves in tissues.
Test your knowledge on applied measurement techniques in ultrasound for diagnostics. This quiz covers topics such as the physics of ultrasound imaging, interaction phenomena with tissues, transducers and probes, ultrasound imaging techniques, Doppler ultrasound imaging, harmonic imaging, image artifacts, and use modalities. Get ready to show off your understanding of this essential diagnostic tool.
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